Drier



.Eiepi;a 9 1924:.

c. E. LEECH ET AL DRIER Filed June 5, 1.922 a Sheets-Sheet 1 Sept. 9 ,v 1924. 1,508,106

C. E. LEECH ET AL I DRIER Filed June 5-, 1922 s Sheets-Shet 2 F757; (2 JOJgM /JYWW C. E. LEECH ET AL prawn Sept. 9 1924. 1,508,106

Filed June 5, 1922 3 Sheets-Sheets I Gwen-m another when a Patented Sept. 9, 1924.

GLOYID E. LEECH, FRANK o. SEIDELL, AND JOSEPH I-I. BENSON, or LIMA, orrro- DRIER.

Application filed J 'une 5,

T 0 (ZZZ whom it may concern:

Be it known that we, CLoYn E. Lenoir, FRANK. Q. SEIDELL, and Josnrrr H. BnNsoN, citizens of the United States, residing at Lima, in the county of Allen and State of Ohio, have invented certain new and useful Improvements in Driers, of which the fol lowing is a specification.

This invention relates to driers, and more particularly to drying apparatus in which material to be dried is fed through the apparatus in the opposite direction to the flow of the products of combustion from a furnace.

An object of the invention is the provision of a machine in which material is fed through drums in the opposite direction to the flow of heated gases, such as the prodnets of combustion from a fire.

A further object is the provision of means for first passing the products of combustion around the drums to heat them and then pass them through the drums.

A further object is the provision of means for feeding the material from one drum to plurality of heating drums are employed.

In the accompanying shown one embodiment In this showing:

Figure l is a vertical sectional view,

Figure 2 is a transverse vertical sectional view on line 22 of Figure 1,

Figure 3 is a similar view on line 3+3 of Figure 1,

Figure & is a similar view on line of Figure 1, and,

Figure 5 is a detail view of a cone arranged at the inlet end of each drum.

Referring to the drawings, the reference numeral 1 designates generally a casing having a fire box or furnace 2 at the bottom. The furnace may be provided with a suitable grate 3 and fire doors 4 of any desired construction. Bearings 5 are arranged at opposite sides of the machine and are adapted to support shafts 6. A drum 7 is secured to these shafts and adapted to revolve therewith. As shown, one shaft at the outlet end of the drum is provided with a plurality of arms 8, forming a spider to which the drum is secured. The opposite end of the drum is secured to the adjacent shaft means of arms 9 forming a spider. A cone 10 projects outwardly from the spider to the wall of the casing (see Figure 1) and this drawings, we have of the lnvention.

The shafts may 1922. Serial No. 565,800.

cone is terminate in the arms 9. A second drum is mounted above the drum 7on shafts 13 which are supported in bearings 14 similar to the bearings 5. The shafts l3 are pro-' provided with spiral blades 11 which I arms are secured to the periphery of the drum. The opposite end of the drum is provided with a cone 16 carried by the shaft 13 and having spiral blades 1'7. blades terminate in arms 18 forming a spider be driven in any suitable manner and are connected gears 19, as shown.

Material to be dried is fed into the machine by means, of conveyors 20 having flights 21. The casing isvprovided with "a receiving compartment 22 formed by substantially vertical side walls23 and a curved wall 24 arranged beneath the cone 16. The vertical walls are provided with doors 25 and shelves 26 are formed on the outside of these doors. Material deposited on the shelf 26 by the conveyor 20 is adapted to open the door 25, then pass oyer cone 16 to the interior ofthe drum. Each of the drums is provided with spill plates or stiffeners 27 which extend throughout the length of the drums and are secured to'the arms of the spiders. w i I v The casing is provided with an inner housing formed of a curved wall 28ar-f ranged beneath the cone 10 and a vertical wall 29 which is spac'ed from the wall of the casing. with openings .for the ends of the drums and is adapted to permit communication between the upper and lower drums through compartment 80. A stack 31 communicates with the upper drum at its inlet endian d an outlet chute drum at its outlet end.

In operation, material is fed into the upper drum by the conveyors 2'0 and passes over the revolving cone 16. The blades '17 feed material into the druml2'where it is agitated by by the plates 27. the drum into the upon the cone 10 the lower drum.

32 communicates with'the lower The material passes from compartment 30 and, falls whence it is delivered to From the lower drum, the

material passesto the "outlet' 32. The prod- These to each other by hinged This vertical wall is provided the revolution of the drum and note of combustion from the furnace pass up inthe casing around the drums heating the exterior of drums. These products are kept from the compartment 30 by the wall 29 until they flow through the lower drum then they pass upwardly through the compartment 30 to the upper drum and thence to the stack, By means of the construction disclosed we provide a construction in which the driest material comes in contact with the hottest and driest gases and is thus thoroughly dried the gases then passing through the machine in a reverse direction whereby partly saturated gases come in contact with the wetter material. The provision of wall 29 also permits the gases to be passed around the exterior of the drum before entering the lower drum, thus heating the drums and drying any material adj acent the walls.

It is to be understood that the form of our invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape size, and arrangement of parts may be re sorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described our invention, we claim:

1. In a device of the character described, a casing, shafts extending through the ends of the casing, spiders arranged on the inner ends of the shafts, a drum secured to said spiders. an inlet compartment in said casing adjacent one end of said drum, a cone arranged on one of said shafts within said compartment, and means for delivering heated gases to said drum.

2. In a device of the character describech a casing, a plurality of revolving drums mounted in said casing a dividing wall in said casing forming a compartment to permit communication between the outlet end of each drum and the inlet end of the next adjacent drum, and means for passing heated gases through said drums.

In a device of the character described, a casing, a plurality of revolving drums mounted in said casing, an inlet compartment adjacent one end of one of the drums, receiving compartments arranged between the outlet end of each drum and the inlet end of the next adjacent drum, cones arranged in said inlet compartment and said receiving compartments to deliver material to said drums, and means for passing heated gases-through said drums.

4. In a device of the character described a casing, a pair of revolving drums mounted in said casing, an inlet compartment adjacent one end of one of the drums, a receiving compartment arranged between the other end of said first named drum and the inlet end of the other of said drums, cones arranged in.

said inlet compartment and said receiving compartment to deliver material to said drums, means for heating said drums, a stack communicating with said inlet compartment and means for deliveri, material to said inlet compartment.

in a device of the character described a casing, pair of revolving drums mounted in said casin an inlet compartment adjacent one end of one of the drums,a receii ing compartment arranged between the ctheiend of said first named drum and the inlet end of the other of said drums, means for heating said drums, a stack communicatinej with said inlet compartment, a dividing wall arranged in said casing and separating said heating means from said stacln whereby gases from said heating means are caused to flow from the interior of the drums to the stack, and means for deliven ing material to said inlet compartments.

6. ln a. device of the character described a casing, a pair of revolving drums mounted in said casing, an. inlet compartment adjacent one end of one of the drums, a receiving): compartment arranged between the other end of said first named drum and the inlet end of the other of said drums cones arranged in said inlet compartment and said receiving compartment to deliver material to said drums, means for heating said drums, :1 stack communicating with said inlet compartment, a conveyor tube cominuncatinn' with said inlet compartment, a conveyor in said tube adapted to feed material to said inlet compartment, and means for normally closing communication between said tube and said inlet compartment.

7. in a device of the character described. a casing, a pair of revolving drums mounted in said casing an inlet compartment adjacent one end of one of the drums. a receiving; compartment arranged between the other end of said first named drum and the inlet end of the other of said drums cones arranged in said inlet compartment and said receiv ing compartment to deliver material to said drums, means for heating said drums. a stack communicating with said inlet cour partment, a conveyor tube. a partition separating said tube from said inlet compartment, said partition. being provided with an opening, a normally closed hinged door corering said opening, and a conveyor in said tube adapted to feed material to said opening, said door being adapted to be opened by material from said conveyor. I

In testimony whereof, we affix our signatures in presence of two witnesses.

CLOYD E. LEECH. FRANK O. SEIDELL. JOSEPH H. BENSON.

Witn esses W. P. ANDERSON, BLANCHE Annnuson, 

